/*
 * Copyright 2011 Alex Paréj.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.mkdir.util;

import java.text.Normalizer;
import java.text.Normalizer.Form;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 *
 * @author Alex Paréj
 */
public final class StringUtil {
    
    private StringUtil(){
        
    }

    public static String ekezetekEltavolitasa(String string) {
        if (isUres(string)) {
            return string;
        }
        return Normalizer.normalize(string, Form.NFD).replaceAll("\\p{InCombiningDiacriticalMarks}+", "");
    }

    public static boolean isUres(String string) {
        if (string == null || string.isEmpty()) {
            return true;
        }
        return false;
    }

    public static String ujSor() {
        return "\n";
    }

    public static String osszekever(String string) {
        List<Character> ret = stringbolKarakterlista(string);
        Collections.shuffle(ret);
        return karakerlistabolString(ret);
    }

    public static List<Character> stringbolKarakterlista(String string) {
        if (string == null) {
            throw new IllegalArgumentException();
        }
        List<Character> ret = new ArrayList<Character>();
        for (Character c : string.toCharArray()) {
            ret.add(c);
        }
        return ret;
    }

    public static String karakerlistabolString(List<Character> list) {
        if (list == null) {
            throw new IllegalArgumentException();
        }
        StringBuilder ret = new StringBuilder();
        for (Character c : list) {
            ret.append(c);
        }
        return ret.toString();
    }
}
